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प्रश्न
State whether the following is True or False.
Coal takes millions of years to form.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
What is a source of energy? What are the two main categories of the sources of energy?
Why are fossil fuels classified as non-renewable source of energy?
Classify the following into renewable and non-renewable sources of energy:
Coal, Wind, Tides, Petroleum,Wood, Natural gas
Classify the following
Coal, Wind, Tides, Petroleum,Wood, Natural gas
What is the basis of above classification?
A non-renewable source of energy is:
(a) wood
(b) alcohol
(c) hydrogen gas
(d) natural gas
Compare the sun and the fossil fuels as the sources of energy.
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
The constituent of biogas which makes it an excellent fuel is:
(a) butane
(b) methane
(c) propane
(d) ethane
The fuel which is not obtained from biomass is:
(a) firewood
(b) cow-dung cakes
(c) coke
(d) charcoal
The non-renewable source of energy among the following is:
(a) hydroelectricity
(b) sewage gas
(c) natural gas
(d) gobar gas
Answer the following question.
Write the name of the main constituent of Biogas. Also, state its percentage.
Can you tell?
Why should we save energy?
Why should we conserve the non-renewable sources of energy?
State the main difference between the renewable and non-renewable sources of energy.
Why is charcoal considered better fuel than wood?
Which of the following is a pair of exhaustible natural resources?
Exhaustible natural resources are
Write True/False against the following statement.
Wildlife is an exhaustible natural resource.
Look at the figure where petroleum and natural gas deposits are shown. Why do we find oil layer above water layer?
